Hand-held refractometer



FIG. 1 is an isometric view of the hand-held refractometer of my new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a front elevational view thereof.

FIG. 5 is a rear elevational view thereof.

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

The broken lines showing throughout the drawing figures are included for the purpose of illustrating environmental structure only and form no part of the claimed design. 

We claim the ornamental design for a hand-held refractometer, as shown and described. 